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gearing ?

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Old 12-14-2010
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Join Date: Dec 2007
Location: Farmington
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Default gearing ?

have a 95 XLT SP, got a 136x2 track on it, in deep powder it cant get to the power band and is a bit lazy on normal trails. Gets up to about 5800 RPMS and thats it in the deep. I had to go to a 7 tooth driver cog instead of the stock 8 tooth for clearance. Which gears should I get to get a little more low end out of it to get the RPMS up where they need to be? and where is a good place to get them online? appreciate any insight. If you need any more info let me know.
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Old 12-14-2010
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You have the stock gears in yet, with a drop in driver gears? Your already lower then stock gearing. I'm a bit of a dunce but I'm leaning towards clutching. What helix do you have in it? Buttons in secondary good?
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Old 12-15-2010
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yes stock gears. I guess my line of thinking is when I dropped from a 8 tooth to a 7 tooth I added speed to the track and took away power. Think 10 speed bike shifting to a smaller diameter gear on the rear driven wheel. Is this thinking incorrect? If I go to a larger diameter lower gear I would regain some of the torque or if I went with a smaller diameter upper gear the same would get accomplished. I am pretty mechanically inclined but havent dont much with snowmobiles in the gearing/clutching realm.

Clutch is all stock but hasnt been serviced in some time. I havent pulled off the secondary since last year when I was playing with the preload on the spring. Buttons looked decent then if I remember right. I tightened up the spring a bit in the secondary and that made a slight improvement but performed nothing like a stock 600 sled I rode.
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Old 12-15-2010
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Going to smaller drivers lowers your gear ratio - more power less speed. It's like changing the FRONT gear on a 10 speed bike.Take a look here:
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Old 12-15-2010
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if its bone stock clutching i would start with a black secondary spring.
if more bang is what you want then a silver blue secondary spring, and a 48-34 or 48-36 helix would be a good upgrade.

make a snow deflector for the exhaust so that dont plug in the deep stuff as well
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